However, this ammunition is also used for hunting whitetails and other small to medium-sized game. That is real unusual and makes all the others a compromise. 7.62x39 mm ammo, also known as 762 Soviet AK-47, is a rimless rifle cartridge that originated during WWII and has remained a popular choice for target practice due to its lower cost than comparable calibers. It delivers the desired velocity, case capacity, and doesn't waste a bit of it. In this specific application, you can see that Trail Boss is unique. In this day, I am using whatever is the best selection in this respect. One of the great bits of information within the QuickLoad calculations is a look at the efficiency of the various powders as expressed by a percent as to what is burnt (with the remainder being blown out the barrel). In rifles, I simply don't bother with any powders filling the case capacity with less than 90%. When selecting a powder for a load, one of several criteria I consider is "compression", my experience has taught me that more is better in producing tighter ES & SD with both pressure and velocity. The "compression" or filled case capacity is best explained with the following image (it is actually 96%). For an application like this, there just is not another powder available in the US that provides a full case of powder at the desired velocity. That's correct, IMR Trail Boss is what I was talking about. 8.0-grains would provide a nice tight compression of about 93% for the 1100 FPS that would produce 26.7 KPSI and 100% of the powder burnt."įirst, I assume you meant "Trail Boss"? If so, would you explain the part about "nice tight compression of about 93%". It does not store any personal data.Mr surveyor wrote:Above you said, "TrainBoss would be King. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is used to store the user consent for the cookies in the category "Other. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. You shouldn’t use this ammo to hunt brown bear, because that animal that would gladly use your AK-47 as a toothpick. Brown Bear gets their name from the distinctive colored lacquer they apply to their case to protect it from rust. Along with its non-corrosive Berdan primer it’s pretty much a no-go at the reloading bench, but that’s hardly a great loss if you hadn’t planned on handloading anyway. This round’s case is made of cost-effective steel as well. If your range bans magnetic ammo, they’re certainly banning this particular ammo. The most important thing to “bear” in mind is that Brown Bear uses steel in their bullet jacket to cut down on production costs. This round’s bullet offers a simple, economical full metal jacket design: smooth feeding, clean shooting, and non-expanding. This subsonic round’s heavyweight bullet doesn’t break the sound barrier when it achieves its 1,115 fps muzzle velocity, so you can train and plink that much more discreetly! But when Brown Bear loads a 7.62×39 round a 196 grain bullet – which is about 60 percent heavier than usual – its report is going to become much, much softer. So long as a 7.62×39 cartridge relies on ignition to propel its bullet down the barrel, it’s going to make some noise.
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